Ok so my big guy STILL is not at his ideal weight. I wouldn't say that he's underweight much, just that he needs a bit more to maintain working the 4-5 times a week that we are doing right now. The vet suggested I look into another brand a feed, as the feed shop I go to is a bit limiting.
So, he's on Nutrena Safe Choice right now, and has done well by it (he gained close to 300lbs), but he just can't seem to gain anymore, and he does lose it fairly quickly. So, one feed I was looking at was the Masterfeeds Podium, which I believe is a Canadian feed.
The big difference between the two is that the Podium has a higher fibre level at 21% vs 15% and a higher fat level 8% vs 6%. Would this be condusive to more weight gain? Or should I be looking for something else?